风致飞射物飞行特性的CFD数值模拟  

CFD numerical simulation of flight characteristics of wind-induced projectiles

作　　者：张建国[1] 张明浩 温祖坚 Zhang Jianguo;Zhang Minghao;Wen Zujian(School of Architecture and Civil Engineering,Xiamen University,Xiamen Fujian 361005,China)

机构地区：[1]厦门大学建筑与土木工程学院,福建厦门361005

出　　处：《山西建筑》2025年第6期8-13,共6页Shanxi Architecture

基　　金：福建省自然科学基金项目(项目编号:2018J01085)。

摘　　要：利用计算流体动力学(CFD)中的六自由度模型(6DOF)数值模拟和自定义函数编译(UDF)更新动网格两种方法,研究了球状和板状飞射物在二维流场中的气动特性以及飞射物与流场的耦合运动情况,得到了两种飞射物在流场中的运行轨迹。将结果与风洞试验数据和经验公式进行对比,证明利用非定常CFD方法研究风致飞射物的飞行特性是可行的,并据此提出了较好的六自由度模型(6DOF)数值模拟方法,为研究风致飞射物的飞行特性提供了一种可靠的数值模拟方法。The aerodynamic characteristics of spherical and plate-like projectiles in a two-dimensional flow field,as well as the coupled motion between the projectiles and the flow field,were studied using two methods:numerical simulation using the Six Degree of Freedom Model(6DOF)in Computational Fluid Dynamics(CFD)and updating the dynamic mesh Using Custom Function Compilation(UDF).The trajectory of the two projectiles in the flow field was obtained.By comparing the results with wind tunnel test data and empirical formulas,it is demonstrated that using unsteady CFD methods to study the flight characteristics of wind-induced projectiles is feasible.Based on this,a better six degree of freedom model(6DOF)numerical simulation method is proposed,providing a reliable numerical simulation method for studying the flight characteristics of wind-induced projectiles.

关 键 词：风致飞射物 CFD数值模拟 飞行轨迹 六自由度模型 

分 类 号：TU317[建筑科学—结构工程]